Allan R

Don't know if you've seen this or not - it's the story of the worlds smallest actual working V12. Incredible amount of precision miniature machining. Have a look - you will be absoutely amazed. (takes 9:25 to watch the entire build) over 1220 hours to build.
http://www.wimp.com/tiniestengine/

oldsguybry

now that is cool , my kid would love that motor in his RC car

Allan R

Can you imagine the time and dedication it took? I would think the first time if fired and ran would be the best day of his life! How many of those do you think you could stuff into a single 350 cylinder??

MDchanic

Wow.

If that guy's got a little more free time, there are a few jobs around my house that need doing as well..

- Eric

Allan R

He's also a specialist in color coding wires. Only one he doesn't use is .........PINK
You da man Eric.

Tony72Cutlass'S'

Wow, for a tiny engine, it sounds awesome.

MDchanic

I assume it's "running" on compressed air - what do you guys think?

- Eric

garys 68

And a slightly larger version.
http://www.thunderv12.com/

Tony72Cutlass'S'

Well, i didnt see any spark plugs... It sounds a little bit quiet for gas or alcohol ( i built a couple 1-cyl planes in college for the SAE competitions)..

Didnt olds test their engines on compressed air for leaks?

Actually, Eric,

I would think that if it was actually running on a magneto (which would be the most likely approach? unless he went on to machine an ultra-tiny points-set :P) I would that the plexiglass covering the crank would melt right off.. Not sure, i have heard of see through valve covers before, dunno if they're any good.

rocketraider

That big GMC V12 stunned and amazed me. I knew of the 305/351 V6 light truck engines, but I never knew they built those big 12s. Found another vid of one installed in a 1T 62 GMC flatbed, running around a farm. Damn thing will move!

Sounds like they were powerful but thirsty, is why they phased them out of big Jimmy road tractors. Diesels were getting way better fuel mileage.

Destructor

1 to 1 timing gear ratio, compressed air. Amazing work.

cwracer

Wouldn't take much more effort for him to up the anti to a V16!

MDchanic

Yeah, I saw that, but it didn't sink in.

Nice catch.

- Eric

Destructor

They do make tiny spark plugs, I've seen them on some of the web sites featuring miniature gas engines with spark ignition. A true fuel injected diesel would really be some challenging machining.

RAMBOW

heres one that actually runs...

http://www.youtube.com/watch?v=lc6jC...eature=related

THere are a ton of those mini engines out there... neat to see the blown v8 ones.